/* ==========================================================================
   RESEARCH PUBLICATIONS SECTION
   All styles are scoped under the parent class `.research-publications`
   so this block can be dropped into any page without leaking styles.
   ========================================================================== */

        .research-publications {
            /* ---- design tokens (CSS variables), scoped to this section only ---- */
            --rp-bg: #F6F4EE;
            --rp-surface: #FFFFFF;
            --rp-ink: #16302E;
            --rp-ink-soft: #4A5C5A;
            --rp-muted: #8A9491;
            --rp-line: #DCD6C7;
            --rp-teal: #123C3B;
            --rp-teal-deep: #0B2625;
            --rp-gold: #B9862F;
            --rp-gold-soft: #F1E3C6;
            --rp-radius: 14px;
            --rp-radius-sm: 8px;
            --rp-font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
            --rp-font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
            --rp-max-width: 900px;
            --rp-gap: 28px;

            background: var(--rp-bg);
            color: var(--rp-ink);
            font-family: var(--rp-font-body);
            padding: 72px 20px 88px;
            box-sizing: border-box;
        }

        .research-publications *,
        .research-publications *::before,
        .research-publications *::after {
            box-sizing: border-box;
        }

        /* ---- header ---- */

        .research-publications .rp-container {
            max-width: var(--rp-max-width);
            margin: 0 auto;
        }

        .research-publications .rp-header {
            margin-bottom: 48px;
        }

        .research-publications .rp-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--rp-gold);
            margin: 0 0 14px;
        }

        .research-publications .rp-eyebrow::before {
            content: "";
            width: 22px;
            height: 1px;
            background: var(--rp-gold);
            display: inline-block;
        }

        .research-publications .rp-heading {
            font-family: var(--rp-font-display);
            font-weight: 500;
            font-size: clamp(30px, 4.4vw, 46px);
            line-height: 1.12;
            margin: 0 0 14px;
            color: var(--rp-teal-deep);
        }

        .research-publications .rp-subhead {
            font-size: 15.5px;
            line-height: 1.6;
            color: var(--rp-ink-soft);
            max-width: 56ch;
            margin: 0;
        }

        .research-publications .rp-count-row {
            display: flex;
            align-items: baseline;
            gap: 10px;
            margin-top: 22px;
        }

        .research-publications .rp-count-number {
            font-family: var(--rp-font-display);
            font-size: 20px;
            font-weight: 600;
            color: var(--rp-teal);
        }

        .research-publications .rp-count-label {
            font-size: 13px;
            color: var(--rp-muted);
            letter-spacing: 0.02em;
        }

        /* ---- list wrapper with the timeline signature element ---- */

        .research-publications .rp-list {
            list-style: none;
            margin: 0;
            padding: 0;
            position: relative;
        }

        .research-publications .rp-list::before {
            content: "";
            position: absolute;
            left: 27px;
            top: 10px;
            bottom: 10px;
            width: 1px;
            background: linear-gradient(to bottom, var(--rp-line) 0%, var(--rp-line) 96%, transparent 100%);
        }

        @media (max-width: 640px) {
            .research-publications .rp-list::before {
                left: 19px;
            }
        }

        /* ---- individual publication item ---- */

        .research-publications .rp-item {
            position: relative;
            display: flex;
            gap: 18px;
            padding: 22px 0;
            border-bottom: 1px solid var(--rp-line);
        }

        .research-publications .rp-item:first-child {
            padding-top: 4px;
        }

        .research-publications .rp-item:last-child {
            border-bottom: none;
        }

        .research-publications .rp-num {
            flex: 0 0 auto;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: var(--rp-surface);
            border: 1px solid var(--rp-line);
            display: flex;
            align-items: center;
            justify-content: center;
            font-family: var(--rp-font-display);
            font-size: 15px;
            font-weight: 600;
            color: var(--rp-teal);
            position: relative;
            z-index: 1;
        }

        @media (max-width: 640px) {
            .research-publications .rp-num {
                width: 40px;
                height: 40px;
                font-size: 12.5px;
            }
        }

        .research-publications .rp-body {
            flex: 1 1 auto;
            min-width: 0;
            padding-top: 4px;
        }

        .research-publications .rp-title {
            font-family: var(--rp-font-display);
            font-weight: 600;
            font-size: 17px;
            line-height: 1.45;
            color: var(--rp-teal-deep);
            margin: 0 0 12px;
        }

        @media (max-width: 640px) {
            .research-publications .rp-title {
                font-size: 15.5px;
            }
        }

        /* ---- read more toggle button ---- */

        .research-publications .rp-toggle {
            appearance: none;
            border: none;
            background: none;
            padding: 0;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-family: var(--rp-font-body);
            font-size: 12.5px;
            font-weight: 600;
            letter-spacing: 0.03em;
            text-transform: uppercase;
            color: var(--rp-gold);
            cursor: pointer;
            transition: color 0.2s ease;
        }

        .research-publications .rp-toggle:hover {
            color: var(--rp-teal);
        }

        .research-publications .rp-toggle:focus-visible {
            outline: 2px solid var(--rp-teal);
            outline-offset: 3px;
            border-radius: 4px;
        }

        .research-publications .rp-toggle-icon {
            width: 14px;
            height: 14px;
            border-radius: 50%;
            border: 1px solid currentColor;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex: 0 0 auto;
            transition: transform 0.25s ease;
        }

        .research-publications .rp-toggle-icon svg {
            width: 7px;
            height: 7px;
            transition: transform 0.25s ease;
        }

        .research-publications .rp-item.is-open .rp-toggle-icon svg {
            transform: rotate(180deg);
        }

        .research-publications .rp-item.is-open .rp-toggle-label--closed {
            display: none;
        }

        .research-publications .rp-toggle-label--open {
            display: none;
        }

        .research-publications .rp-item.is-open .rp-toggle-label--open {
            display: inline;
        }

        /* ---- expandable details panel ---- */

        .research-publications .rp-details {
            overflow: hidden;
            max-height: 0;
            opacity: 0;
            transition: max-height 0.35s ease, opacity 0.3s ease, margin-top 0.35s ease;
            margin-top: 0;
        }

        .research-publications .rp-item.is-open .rp-details {
            opacity: 1;
            margin-top: 14px;
        }

        .research-publications .rp-details-inner {
            background: var(--rp-surface);
            border: 1px solid var(--rp-line);
            border-radius: var(--rp-radius-sm);
            padding: 14px 16px;
        }

        .research-publications .rp-authors {
            font-size: 13.5px;
            line-height: 1.6;
            color: var(--rp-ink);
            margin: 0 0 8px;
        }

        .research-publications .rp-authors strong {
            font-weight: 600;
            color: var(--rp-teal-deep);
        }

        .research-publications .rp-citation {
            font-size: 13px;
            line-height: 1.6;
            color: var(--rp-ink-soft);
            margin: 0;
        }

        .research-publications .rp-note {
            display: inline-block;
            margin-top: 10px;
            font-size: 12px;
            font-weight: 600;
            color: var(--rp-teal);
            background: var(--rp-gold-soft);
            padding: 5px 10px;
            border-radius: 20px;
        }

        /* ---- responsive tweaks ---- */

        @media (max-width: 640px) {
            .research-publications {
                padding: 48px 16px 60px;
            }

            .research-publications .rp-item {
                gap: 12px;
            }

            .research-publications .rp-details-inner {
                padding: 12px 14px;
            }
        }